Current-distributing apparatus.



L. M. KLAUBER & R. C. CAVELL. cunnzm msrmaurms APPARATUS.

APPLICATION FILED IAN- IO, I916.

Patented Jan. 23,1917.

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L. M. KLAUBE R & n. c. CAVELL.

CURRENTYDISTRIBUTING APPARATUS.

APPLICATION FILED mm. 10. 1916.

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UNITED STATES PATENT OFFICE.

LAURENCE M. KLAUBEB AND C. CAVELL, OF SAN DIEGO, CALIFORNIA; SAID CAVELL ASSIGNOR TO SAN DIEGO CONSOLIDATED GAS AND ELECTRIC (20., OF SAN DIEGO, CALIFORNIA, A CORPORATION OF CALIFORNI vented certain new and, useful Improvements in Current-Distributing Apparatus,

of which the following is a specification.

This invention relates to apparatus for supporting and connecting conductors such as are used for supplying consumers with electric service from electric lines. Such service often involves frequent changes as new consumers arise or others discontinue their use of the service. This may entail the breakingof old individual service con-,

nections or the making of such new connections. I v

A principal object of the inventlon is to provide suchapparatus in which such con- 20,

nections and disconnections can be made for the service wires without interfering with other connections, and to construct the apparatus so that all of the Wire connections are readily and independently accessible.

A further object is to provide a construction enabling the electrlcal connection of any conductor to be altered without necessitating its disconnection from the mechanical support for the conductor.

A further object of the invention is to provide apparatus of this kind in which ample provision is made for taking strains in the conductors, and to prevent any substantial strains being imparted to the service connections. 7

.A further object of the invention is to provide a very simple and compact apparatus operating as an eflicient support for electric conductors, and a distributing point for the current.

Further objects of the invention will appear hereinafter.

The'invention consists in the general combination of parts, and in the features described in the following specification, while the broad scope of the invention is pointed out in the appended claims.

In the drawings: Figure 1 is a side elevation of a partof an electric current disconnnu'r-ms'mmurmc APPARATUS.

Specification of Letters Patent.

Application flled llarch 10, 1916. Serial No. 83,246.

Patented Jan. 23,1917.

trating details. Fig. 4 is a plan showing a small portion of the service connection'and illustrating another form it may take. Fig.

4 is a section-taken about on the line 44 of Fig. 4, further illustrating details. Fig.

5 is a View similar to Fig. 4, but showing another embodiment or'form of the service connection. Fig. '6 is a section taken on the line 6-6 of Fig. 5 and further illustrating details of this form- Fig. 7 is a view similar to Figs. 4 and 5, and showing another,

embodiment or form the service connection may take. Fig. 8 is a view similar to Fig.

7 showing another modified form of the service connection. Fig. 9 is a section taken I on the line 99 of Fig. 8. Fig. 10 is a fragmentary view showing a portion of the side wall of the insulator and showing I another embodiment of the service connection. Figs. 11, 12 and 13 are partial eleva tions and sectionsthroughthe service connection and showing different forms the attaching means may take for facilitating the attachment of the service conductors to the service connection.

Although features of'the apparatus may be applicable for other purposes, in the present embodiment the invention is described as applied to overhead conductors. The support may be of any character desired, for example a buck arm 1 such as commonly used on poles for carrying overhead wir'es. In'applying' our invention, we arrange the connections of the line so that the service connections are not subjected to Then the service wires will lead off from the ends" of the service connections in a direction approximately at right angles to the line. This is desirable as it is obvious that the buildings where the current is to be de- 5 livered will be on either side of the right of 7 the upper end of the upper portion 4 of the pin 4, (see Fig. 1.) We prefer to provide anchorage for the wires which will enable them to be easily attached and enabling the wire to be brought to the support at the most natural or convenient angle. This will depend upon the local. wiring conditions. 1n order to provide such an anchorage for service wires, for example such as the wires 5 and 6 we prefer to provide a plurality of attaehing points which may comprise openings 7 in the anchor plate, and 'clevises 8. the hooks of which are received in-the openings 7, and the clevises are preferably provided with insulating spools 9 for insulatingly supporting the service wires on the plate. The service conductor may be passedaround the spool and then pulled tight and fastened in any suitable manner such as by twisting the free terminus of the conductor around the'stretched wire.

At any suitable point, but preferably adjacent to the anchor plate 2, we prefer to provide a multiple service connection 1], which maybe supported on an insulator 12, preferably carried on the pin 4. The multiple service connection 11 is preferably in the form of a collar or split ring consisting of two half rings or sections 13, which may be connected together in any suitable man ner, such as by means of bolts 14'. This service connection is preferably provided with a plurality of attaching'means for conductors preferably disposed apart and constructed so that they are independently accessible, enabling any conductor to be connected or disconnected without disturbing other conductors. For this purpose the attaching means on the service connection is preferably in the form of a plurality of circumferentially disposed means for readily coiiperating to effect an attachment to a conductor. In Figs. 1 and 2 this means is illustrated as a simple stud or radial pin 15, and these studs extend outwardly radially from the ring. The connection of the different conductors such for example as the service conductor 16, to thecorresponding attaching means 15 is preferably effected without employing solder, and preferably by means of different individual service conductors.

aconnector, such asa sleeve 17, which telescopes as a coupling over the radial stud or pin 15 and over the connected end 18 of the conductor. This sleeve 17 may be provided with one or more detachable fastening devices, such as the screws 19 illustrated; evidently such fastening devices enable any individual service connection to be readily 'connected or disconnected. Any suitable means is provided for connecting the line wire with the service connection 11, but this ispreferably accomplished by means of wires such as wire 20, which extends down from the line.

The extensions 16 are not subjected to any tension whatever arising fromthe tension in the conductors 5 or 6. In other words, all of the strains arising from the tensile or stretching forces are supported and resisted by the anchor plate 2, .We prefer to locate the openings? at different positions circumferentially on the plate so that the wires ma I be run from the plate in different angular irections, for instance the clevis 8, if desired, could be applied as indicated by the dotted lines at the point 8. This feature gives the anchor plate considerable adaptability and also enables it when desired to be employed for anchoring a plurality of service wires.

The service conductors may be ledoff from the connection 11 in any direction desired but so far as possible they are attached at that opening 7 in the plate that is substantially in line with the pin 4.

In order to insure that a good conducting connection will be made between the two ring sections 13, and also to make a neat fit of the ring sections 13 on the insulator 12,

we prefer to provide a. bushing or liner 21.

of soft metal such as lead, which is located in the groove 22 of the insulator at which the ring is attached. When the bolts 14 are tightened up the I inner face of the ring squeezes into the lead, secures itself tightly, and also insures a good electrical connection or bond.

It is understood that we do not limit ourselves to the particular character of the attaching means on the service connection for attaching the service conductors except that it is very desirable that they should be independently accessible, and independently mmnectible and disconnectible as regards till; it is difficult to secure good conductivity be tween the ring sections wemay directly energize both sections of the ring. To meet this requirement we prefer to attach the'conductor to both sectionssuch for example as in Figs. 4 and 7. The attaching means may assume a variety of forms; a number of examples of such, are shown, for illustration in Figs. 4 to 7. I

' In Fig. 4 the ears 23 at which the bolts 24 are applied for connecting the ring sections 25 together are formed with half round extensions 25 which come together to form outline to the service studs 27. If desired however the attaching means form of a socket instead of a pin, for ex- 4 ample see Figs. 5 and 6, in which each ring sectionis provided with substantially radial tubular arms 28 which form sockets, the bore v 29 of each socket being intended to receive the end 30 of the service conductor, -Which is introduced and then held there by any means desired, such for example as clamping screws 31.

In Fig. 7 is illustrated another embodiment of the service connection in which the ears 32 of the ring sections 33 are provided with openings through which the end of the line conductor 34 may be pressed and held in place by any suitable means, for example, by a set screw 35 in each ear. conductors maybe attached to radial pins 36 disposed around the connection. The attaching means on the service connection may be adapted for carrying the service conductors off in a horizontal plane or in an inclined plane (see for example Figs.-12 and 13) In Fig. 12 the studs 15 project directly down but if desired they may be formed with a straight neck'15 adjacent the ring. The socket form shown in Figs. 5 and 6 may be modified if desired so as to produce sockets without producing projections on the ring, for example, as shown in Figs. 8 and 9, in which the ring 37 is formed with substantially'radial sockets38, toreceive the ends of conductors, such as conductor 39, which may be secured in place by any suitable means, such as clamping screws 40. If de- I cal opening 43 therein, into which the up end of the conductor44 maybe introduced sired, connection may be made with the service conductorsin such a way that the service wire leads down from the connection for example, see Fig. 10, in which the service con-' nection orring 41 is provided with a projecting lug 42 having a substantially vertiper and held in any suitable manner, as for exclamping screw 45.-

made of an insulating material such asvul- 'canized fiber or other material of suificient tensile strength 'to resist the pull in the wires, and this obviates the necessity for makin .the spools 9 of insulating material. And i desired the spools 9 may bev single 1 grooved as at the ft in Fig. 2 or they may have more grooves right in Fig. 2.

4 It is understood that the embodiment of the invention set forth above is only one of the many forms or embodiments our invention may take and we do not wish to be limfor example as at the may be in the or signal systems. i

The service forth. I I

The term electrical distributing ap ratu's as used in the above specification intended to mean any system of conductors carrying electric current, whether for the' purpose of distributing energy for power or,

for any other purpose- Because 1t is evident that our invention is applicable broadly to electric engineering practice, in any of its branches, for example, telegraph, telephone at we claim and desire to secure by Letters Patent is 1. In electric current distributing apparatus, the combination of a supporting member consisting of a plate constructed to resist mechanical stralns, and having a plurality of separate attaching points disposed about an axis,an insulator in above said plate, a service connection r1ng formed of sections metallically connected together for I carrying current circumferentially around said pin, and hav'ng a plurality of separate attaching means, and a plurality of conductors connected insulatingly respectively to said attaching points, said plate operating to support the tensile strains in said conductors, said conductors having extensions connected to the separate attaching means of sa1d ring.

2. In electric current distributing apparatus, an anchor plate to be attached to a support and constructed to resist mechanical strains, means for insulatingly anchoring a plurality of service conductors on said plate, an insulator adjacent said plate, a split ring attached to said insulator and having a plurality of attaching means for connecting and conductor extensions having individually disconnectible means for connecting the said conductors with said ring, said anchor plate operating to relieve said extensions of tensile strain. g

3. In electric current distributing apparatus, a multiple service connection consist-' mg of a split ringformed of metallically connected conducting sections for conduct-- 1ses mounted in said openings and having insulating spools, service wlres' fastened around said insulating spools so as to im- 130,

a plurality of anchor openings therein, clev- 105 sa1d rlng to 1nd1v1dual service conductors,

part the tensile strains in said wires to said ing said service wires with said service conanchor plate, an' insulator mounted on said nection. anchor plate, a service connection 1n the Signed at San Die 0, in the county of San 10 form of a ring secured to said insulator, Diego, State of Cali ornia, this 25th. day of 5 having a plurality of attaching means for J anuary,1916.

connecting said service conductors thereto, LAURENCE M. KLAUBER.

and renewable fastening means for connect- I RAY C. CAVELL. 

